A study on an optimal exercise intensity for enhancing peripheral circulation.

增强末梢循环的最佳运动强度的研究。

• 批准号: 04680145
• 负责人: KAGAYA Atsuko
• 金额: $ 1.34万
• 依托单位: Japan Women's College of Physical Education
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04680145/
• 关键词: training; peripheral circulation; foreamr blood flow; 20% MVC; 30% MVC; 最大血流量; 皮膚血流量; 血圧

The purpose of the present study was to determine an optimal exercise intensity to enhance peripheral circulation during exercise. The training consested of an exhausting dynamic handgrip at a frequency of 60% contractions/min, conducted 5 days/week for 6 weeks. The load applied corresponded to 20% and 30% MVC.The results obtained were summarized as follows ; 1. Eighteen women aged 18-19 yrs were divided into 2 groups ; training group (T group) and control group (C group). After training at 30% MVC, the number of contractions in T group increased significantly. The blood flow immediately after exhausting exercise did not change significantly. In C group, no significant changes in the circulatory parameters were observed.2. The right forearms of 5 women participated in the training at 20% MVC and the left forearms served as control. The number of contractions increased significantly after training, accompanied by augmented peak blood flow in the trained forearm from 24.3(〕SY.+-.〔)3.1 ml/100ml/min (pre-training) to 31.1(〕SY.+-.〔)3.2 ml/100ml/min (post-training)3. Theses results suggested that the training at 30% MVC could improve musclar endurance without increase in blood supply, while the 20% MVC training would contibute to improve oxygen transport capacity.

本研究的目的是确定运动过程中增强外周循环的最佳运动强度。训练包括以60%收缩/分钟的频率进行精疲力竭的动态握力，每周进行5天，持续6周。应用的负载对应于20%和30%的MVC。所得结果总结如下：1. 18名年龄在18-19岁的女性被分为两组；训练组（T组）和对照组（C组）。在30% MVC训练后，T组的收缩次数明显增加。运动后的血流量没有明显变化。C组患者循环参数未见明显变化。5名女性右前臂以20%的MVC率参加训练，左前臂作为对照。训练后收缩次数显著增加，同时训练后前臂血流量峰值从训练前的24.3(]SY.+- - [)3.1 ml/100ml/min增加到训练后的31.1(]SY.+- - [)3.2 ml/100ml/min。这些结果表明，30% MVC训练可以在不增加血供的情况下提高肌肉耐力，而20% MVC训练有助于提高氧运输能力。

项目成果

Kagaya, A.: "Relative contraction force priducing a reductin in calf blood flow by superimposing forearm exercise on lower leg exercise" Eur.J.Appl.Physiol. 66. 309-314 (1993)

Kagaya, A.：“通过在小腿运动上叠加前臂运动，相对收缩力可减少小腿血流量”Eur.J.Appl.Physiol。

加賀谷 淳子 岩村 英吉 荻田 太 山本 幸弘: "小学生の律動的運動における筋収縮・弛緩期の上腕動脈血流" 体育科学. 21. 15-22 (1993)

Junko Kagaya、Eikichi Iwamura、Futoshi Ogita、Yukihiro Yamamoto：“小学生节奏运动时肌肉收缩和放松时的肱动脉血流”《体育科学》21. 15-22 (1993)。

Kagaya,A.: "Relative contraction torce producing a reduction in calt blood flow by superimposing forearm exercise on lower leg exercise" Eur J Appl Physiol. 66. 309-314 (1993)

Kagaya,A.：“通过将前臂运动叠加在小腿运动上，相对收缩力可减少小腿血流量”Eur J Appl Physiol。

Kagaya A,Saito M,Ogita F,Shinohara M: "Exhausting handgrip exercise reduces the blood flow in the active calf muscle exercising at low intensity" Eur J Appl Physiol. 68. 252-257 (1994)

Kagaya A、Saito M、Ogita F、Shinohara M：“精疲力尽的握力训练会减少低强度运动中活跃小腿肌肉的血流量”Eur J Appl Physiol。

Kagaya, A., Saito, M., Ogita, F.and Shinohara, M.: "Exhausting handgrip exercise reduces the blood flow in the active calf muscle exercising at low intensity" Eur.J.Appl.Physiol. 68. 252-257 (1994)

Kagaya, A.、Saito, M.、Ogita, F. 和 Shinohara, M.：“精疲力尽的握力训练会减少低强度运动中活跃小腿肌肉的血流量”Eur.J.Appl.Physiol。